/*
 * Copyright (c) 2013 - 2015, Freescale Semiconductor, Inc.
 * Copyright 2016-2017 NXP
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * o Redistributions of source code must retain the above copyright notice, this list
 *   of conditions and the following disclaimer.
 *
 * o Redistributions in binary form must reproduce the above copyright notice, this
 *   list of conditions and the following disclaimer in the documentation and/or
 *   other materials provided with the distribution.
 *
 * o Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "app_inc.h"

/*******************************************************************************
 * Definitions
 ******************************************************************************/
#define APP_CTIMER_PULSE_COUNTER_BASE   CTIMER3

/*******************************************************************************
 * Variables
 ******************************************************************************/

/*******************************************************************************
 * Prototypes
 ******************************************************************************/
void PulseCounter_Configuration(void);
uint32_t PulseCounter_ReadCounter(void);
void PulseCounter_ClearCounter(void);

/*******************************************************************************
 * Code
 ******************************************************************************/
/*!
 * @brief Main function
 */
int main(void)
{
    uint32_t counterVal;

    /* Init board hardware. */
    BOARD_InitPins();
    BOARD_BootClockRUN();

    /* Initialize debug console. */
    BOARD_InitDebugConsole(); /* Flexcomm0 - UART0, 115200. */

    PRINTF("\r\nCTimer_InputCapturePulseCount Demo.\r\n");
    PRINTF("build time: %s, %s\r\n", __TIME__, __DATE__);

    PulseCounter_Configuration();

    while (1)
    {
        GETCHAR();
        counterVal = PulseCounter_ReadCounter();
        //PulseCounter_ClearCounter();

        PRINTF("counterVal: %d\r\n", counterVal);
    }
}

void PulseCounter_Configuration(void)
{
    ctimer_config_t CTimerConfigStruct;

    /* 配置CTimer为输入捕捉模式、计数器模式 */
    CTimerConfigStruct.mode = kCTIMER_IncreaseOnFallEdge;
    CTimerConfigStruct.input = kCTIMER_Capture_0; /* 使用CAP0捕获外部脉冲 */
    CTimerConfigStruct.prescale = 0U; /* 从时钟源到计数节拍的分频因子 */
    CTIMER_Init(APP_CTIMER_PULSE_COUNTER_BASE, &CTimerConfigStruct);

    CTIMER_StartTimer(APP_CTIMER_PULSE_COUNTER_BASE);
}

uint32_t PulseCounter_ReadCounter(void)
{
    return CTIMER_GetCurrentTimerCounter(APP_CTIMER_PULSE_COUNTER_BASE);
}

void PulseCounter_ClearCounter(void)
{
    CTIMER_Reset(APP_CTIMER_PULSE_COUNTER_BASE);
}

/* EOF. */
